Water-heater.



- H. S. H UMPHREK- WATER HEATER.

APPLICATION FILED Nov. 23, 1908.

Patehted Mar. 22, 1910.

4 SHEETSSHEET 1.

attouwnga V H. S. HUMPHREY. WATER HEATER.

- APPLICATION FILED NOV. 23,1908. 952,618. 7 I Patented Mar. 22, 1910.

4 SHEETS-SHEET 2.

1 ttozwma a 2 9 in eases Y W I 1 H. s. UMPHREY] WATER HEATER. APPLICATION FILED NOV. 23, 1908.

Patented Mar. 22, 1910.

4 SHEETS-SHEET 3.

anuentoz H. S. HUMPHREY. WATER HEATER.

I APPLIGATIONVI'ILED NOV. 23, 1908. I 95 2,6 1 8 Patented Mar. 22, 1910.

4 SHEETS-SHEET 4.

svwcnifoz Witnaaeo I a M a/wmaw WW 3% @W W of the water.

HERBERT S. H'UMFERE'Y, OE KALAMAZOO, MICHIGAN.

WATER-HEATER.

Specification of Letters Pawn.

iatented Mar. 22, 1910.

ApplicaJtioirfiled November '23. 1908. Serial No. 64,121.

To all whom ti may rem/warn:

Be it known that l, HER-BERT S. IIUM PEPIREY, a citizen of the United States, residing at Kalamazoo, Kalamazoo county, hliohigen, have invented certain new and useful Improvements in \Vater-l-letuters, of which the following is a specification.

Tins invention relates to improvements in water heaters.

The main objects of this invention are: First, to provide in a water lieeter an improved valve mechanism whereby the temperzttwre of the water may he efiectively regulated by controlling the which is nu-tonnatically tu-nned on by the drawing off Second, to provide an inn proved valve mechanism tor the automatic control of water hearters in which the heat,- ing means comp-rises gas burner whichma he very accurately reguleted and the overheating of the water, or of the heater, when water being drawn oil, or whenthe drzvvvii-i-g off of the water ceases, is effectively prevented. Third, to provide .an improved valve mechanism which is comparatively simple end economical in structure and is not likely to get out of repair in use.

Further objects, and ohjects relating to structural details, will definitely eppear from the detailed descriptit-rn to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the tents-res of my invention is clearlyillustrated in the accompanying drawing, forming a part of this specification, in which,

Figure 1 is a detail side elevation of a structure embodying the features of my invention. Fig. 2 is a detail horizontal section, taken on a line corresponding :to line 22 of Fig. 1, showing details of the valve mechanism. an enlarged detail vertical section, taken oua line corresponding to the broken line of F 1. Fig:

at is a detail vertical section, taken on a line corresponding to line of 2. Fig. is a further detail vertical section, taken on a line corresponding to the broken line 5--5 of Fig. 3. Fig. 1s an enlarged detail section taken on a line' corresponding to line 6' 5 of F 1g. 3, showing thcsrrangeinent of the valves to the pilot.

In the drawing, the sectional views are trated' tor convenience.

taken looking in the direction of the littlearnows at the ends oftthc section lines, and similar imiu-nerals of reference refer to similar parts throughoi-it the several views.

Referring to the drawing, the heater 1 illustrated is preferably of the coil type, the coils '2 being arranged within'the heater casing. which is preferably double walled, as illustrated, to prevent radiation. The gas burners 3 are located below the water coils. The cold water is delivered to the upper end of the coils through the inlet valve casing at, which is provided with a cold water inlet 5 and a cold water discharge 6, the inlet 5 being connected to the water supply and the discharge 6 being connected to the inlet pipe 7 at the upper end of the heat-er coils. The valve carsing is also provided with a. hot water inlet 8 and a discharge .9, the hot water inlet 8 connected'to the delivery pipe 10 of the heater coils, -preferably through the thermostat tube 11. The hot water inlet is connected to the cold water discharge by means of the circulation port 12, so that, when the circulation port 12 is opened, the water may circulate through the water coils and the I thermostat. The hot water discharge 9 is connected to the house system, or to the draw-0E fiaucet 13, the feucet being illus- The hot water discharge 9 is controlled by the vailve 14, which regulates the amount of water passing through the heater. The water inlet valve 15 is preferably-of the piston type, and is adapted to be automatically .opened by the pressure of the inlet water when the drawofi' faucetis opened, thereby reducing the pressure within the heater or system. On the stem 16 of the valve 15 I arrange a. circulation valve. 17. This circulation valve 17 is loosely mounted on the stem and is yieldingly held against the rest 18 by means of the spring 19. This spring 19 ispreferably a coiled spring, arranged about the stem, its upper end bearing against the valve 15, and its lower end engaging the circulation valve 17. The rest 18 is preferably made adjustable, so that the Valve 17 seats at the desired point. prior to the opening of A further advantage of this adjustment is that it obviates the mess-- the inlet valve 15.

.valve casing, the water valve casing bein spring- 21. This return spring 21 is compressed by opening the valve 15, and exands to return it to its seat. The spring is arranged in. a chamber 22, which is in the form of a cylindrical cap-like extension in the valve casing, and which cap can he removed without removing the main cap (if the valve casing. This permits the adjust ment or the renewai ot the spring 2i with-- out disturbing the packing for the main cap. The as valve casing 23 is provided with anini et 24 which is connected to the the gas. The valve 29 is arranged to be controlled by the water inlet-valve 15, the stem 31 of the main gas valve 29 being arranged so as to be engaged'by the stem 16 of the water inlet valve, so that, when the water inlet valve is opened, the gas valve 29 is opened. The gas valve is returned to its seat by the spring 32. The valve 30 controlled by the thermostat, which is arran in the thermostat tube 11, connected to the heater and to the valve casing, as previously stated. This thermostat preferably consi 1-: of the tubular member 33, which is connected at. its upper end to the valve easing 4, as clearly appears in Figs. 4: and and depends into the thermostat tube 11, as i us trated in Fig. 3. /Vithin the nicinbe is a rod-like thermostat member 34, white not connected at its lower end to the meumer 33. The upper end of the thermostat member 3st is arranged to act on the lever 35, which is fulcrumed at 36 upon the water provided with a chamber 37, (see Fig. adapted to receive the inner end of the lever 35. The fulcrum 36 is preferably threaded, as illustrated, so that it may be adjusted-to properly adjust the parts. The lever 35 is arranged horizontally and adapted to act on the verticallyarranged lever 88, which is fulcrumed at 39 on the gas valve casing. The lever 38 is secured by means of the pivot 40 to the stem 41 of the valve 30. so that when the thermostat is actuated by the changes in temperature of the water, the gas valve is actuated. The gas valve 30 is held yieldingly closed by means (it the I coiled spring By this arrangement of the valves, when the drawing, off of the water is stopped the water inlet valve automatically closes and the gas valve 29 nor-- mally closes, but should the gas valve for any reason fail to close, the gas is cut off by y the thcrniostatlcally-controlled valve 30 as I the water in the heater soon becomes hot enough to actuate the thermostat. The valve 30 also serves to keep the tcn'iperati'u'e The thermostat tubes and member and the lever 35 being mounted upon and supported from the valve casiugflr, the proper relations of the parts are maintained and it is quite unlikely that they should bedisarranged either from the settling of the parts or from carelessness in assembling suilicient to interfere with the eliicient working thereof.

The gas and water valve Ct sings are preterably made separately and connected by a yoke 43 by which they are held in proper position, the valves otherwise being supported upon the connecting pipes. which, in practice, l find entirely practicable, Each valve casing is iirel'crably made up of a plurality of parts "for convenience in manufacture, but, as these details will be readily understood by one skilled in this art, from an inspection of the drawings, l have not described them specifically l: preferably provide a gas cut ott' valve it, which is interposed between the valves 29 and 30, This valve 42. principally intended tor use when the heateris out of operat'ion,--that is, it it is not to be used for a considerable period of time, it is desirable to cut oft the 0 thereby preventing any possibility of leun'age in the. heater, or otherwise. The delivery pipe 10 of the heater is also prci'eral'ily provider l with a valve, as -t5, which may be used for cutting oli' the llQW of water entirely. or for adjusting the Silfit'fi. in practice, it is not intended that is valve shall be manipulated a l t er the heater is properly adjusted.

The pilot 4th is connected by the pipe "l7 to the passage *1. in the valve casing, which i is mnnected by the by-pass ll), and. through the valve ht), to the gas supply or inlet passage E a -see Fin. (3. The bypass 4-9, through which the normal supply of gas is l l'tairlv even temperature.

5'1, thereby regulating the size of the normal pilot; flame. hen the water inlet valve acts upon the valve Qt) to open the same, the valve 50 opened. thereby flashing the pilot by delivering an additional supply of gas through the passage 48 and to the pilot.

delivered, is controlled by the needle valve of the water drawn from the heater at a. I

The pilot also preferably provided with With which the parts may 'be assembled. Further, on account of the durability of the same, and that it is not likely to get out of repair. am aware, however, that my invention is capable of considerable variation in structuraldetails Without departing from my invention, and I desire to be understood as claiming the same broadly as well as specifically.-

Having thus described my invention, What I claim as new and desire to secure by Letters Patent is 1. The combination witha water heater, of a gas burner therefor; a Water valve casing having a cold water inlet and discharge, a hot water inlet and discharge, and a cir culation portconnecting said hot Water inlet with said cold water-discharge, said cold water discharge and said hot Water inlet being connected to the water heater; a water inlet valve; a return spring for said inlet valve; a \circulation valve arranged to be automatically controlled bysaidiinlet valve whereby it is closed when said Water inlet valve is open, and opened-When said Water inlet valve is closed; a valve for controlling said hot water discharge; a thermostat connected to said heater; a gas valve casin having an inlet and a discharge passage, sai discharge passage being. connected to said burner; valves for controlling said inlet and discharge passages, said inlet valve beingarranged to be controlled by said water inlet valve and said discharge valve being controlled by said thermostat; and a cut-off valveinterposed: between-said valves for said inlet and-discharge passages.

The combinatioir with a Water heater,

of a gas burner therefor; a water valve cas 111;: having a cold water inlet and discharge, a hot water inlet and discharge, and a onculation port connecting said hot water inlet with said cold water discharge, said cold water discharge and said hot water inlet being connected to the water heater; a water inlet. valve; a return spring for said inlet valve; a circulation valve arranged to be automatically controlled by said inlet valve whereby it isclosed when said water inlet valve is open, and opened when said Water inlet valve is closed; a thermostat connected tosaid heater; a gas valve casing having an inlet and a discharge passage, said discharge passage being connected to said burner; valves for controlling said inlet and discharge passages, said inlet valve being" arranged to be controlled by said water inlet valve and said discharge valve beingcontrolled by said thermostat; and a cut-oti valve interposed between said valves for said inletand. discharge passages.

3. The combination with a water heater ot a gas burner therefor; a water valve casing having a cold water inlet and discharge, 1. hot 'ater inlet and discharge, and a C11- culation port connecting said hot water irrlet with said cold water discharge,,said cold water discharge and said hot Water inlet being connected to the water heater; a w; :er

inlet valve; a return spring for said inlet valve; a circulation valve arranged o be automatically controlled by sanl inlctilve whereby it IS closed when said water iniet valve is open, and opened when said water inlet valve is closed; a valve for controlling said hot water discharge; a thermostat connected to said heater; a gas valve casing having an inlet and a discharge passage,-

said discharge passage being connected to said burner; and valves for controlling said inlet and discharge passages, said i valve being arranged to be controlled by said wa ter inlet valve and said discharge valve ing controlled by said thermostat.

4. The combination with a water heater,

of a gas burner therefor; a water valve cas ing having a cold water inlet and discharge, a hot water inlet and discharge, and a circulation port connecting said hot water inlet with said cold' water discharge, said cold Water discharge and said hot water inlet belng connected to the water heater; a water inlet valve; a return spring for said water inlet valve; a circulation valve arranged to be automatically controlled by said inlet valve whereby it is closed when said water inlet valve is open and opened when said Water inlet valve is closed; a; thermostat connected to said heater; a gas'valve casing having an inlet and a discharge passage, said discharge passage being connected to said burner and valves for controlling said inlet and discharge passages, said inlet. valve being arranged'to be controlled by said water inlet valve; a circulation valve arranged to be automaticallycontrolled by said inlet valve whereby it is closed when said water inlet valve-is open, and opened when said water inlet valve is closed: a valve for controlling said hot Water discharge: a thcr mostat connected to said heater; a gas valve casing having an inlet and a discharge pas sage, said discharge passage being connected to said burner; valves t'or controlling said inlet and discharge passages, sa1d inlet valve being arranged to be controlled by said water inlet valve and said discharge valve being controlled by said thermostat; and a cut-off valve interposed between said valves for said inlet and discharge passages;

(3 The combination with a water heater, water inlet valve and said discharge valve of a burner therefor; a 'ater valve casing having a cold water inlet and discharge, a hot water inlet and dischargt'i, and a circulation port connecting said hot water inlet with said cold water discharge, said cold water discharge and said hot water inlet being connected to the water heater; a water inlet valve; a circulation valve arranged to be auton'mticall v controlled by said inlet valve \vlmreby it is closed when said water inlet valve is open, and opened when said water inlet: valve is closed; a thermostat connected to said heater; a gas valve casing having an inlet and a discharge passage, said discharge passage being connected to said burner; valves for controlling said inlet and discharge passages, said inlet valve being arranged to be controlled by said water inlet valve and said discharge valve being controlled by said thermostat; and a cut-otl' valve interposed between said *alves for said inlet and discharge passages.

7. The combination with a water heater, ot' a gas burner there'r'or; a water valve casing having a cold water inlet and discharge, a hot water inlet and discharge. and a circulation port connecting said hot-water inlet with said cold water discharge, said cold water discharge and said hot water inlet be ing connected to the water heater; a water inlet valve; a circulation valve arranged to .be automat i ,:al'l v controlled by said inlet valve \vnereby it is closed when said water inlet valve-is open, and opened when said water inlet valve is closed;a valve for controlling said hot Water discharge; a thermostat coi'niected to said heater; a gas valvcasing having an inlet and a discharge passage, said discharge passage being connected to said burner; and valves for controlling said inlet and discharge passages, said inlet valve being ar *anged to l controlled by said water inlet valve and said discharge valve being controlled by said t'lltl'lllOSi'tltl.

8. The coml'iination with a water heater, of a gas burner therefor; a water valve casing having a cold water inlet and discharge, a hot water inlet and discharge, and a circulation port connecting said hot water inlet with said cold water discharge, said cold water discharge and said hot water inlet being connected to the 'atcr heater; a water inlet valve; a circulation valve arranged to be automatically controlled by said inlet valve \vl'iereby it is closed when said iu' 'ater inlet valve is open, and opened when said water inlet valve is closed; a thermostat connected to said heater; a gas valve casing having an inlet and a lischarge passage said discharge passage being connected to said burner; and valves for. controlling said inlet and discharge passages, said inlet valve being arranged to be controlled by said llll tl valve; :1 circul being controlled by said thermostat.

t). The combination with a water heater, ot' a gas burner therefor; a Water valve casing having a cold water inlet and discharge, a hot water inlet and discharge and a circulation port connecting said hot water inlet with; aid cold water discharge, said cold discharge and said hot water inlet X'Olllltflfl'ttl to the water heater; :1 water at ion valve arranged to be automatically controlled by said inlet valve whereby it is closed when said water inlet valve is open, and opened when said vvater inlet valve is closed; a thermostat arranged in said connection for said heater to said hot water inlet a gas valve casing having an inlet and a discharge passage, said discharge passage being connected to said burner; valve tor controlling said inlet and ulischarge passages, said inlet valve being arranged to be controlled by said water inlet valve and said dischar e valve being controlled by said thermostat.

10. The combination with a water heater,

a water valve casing having therein a cold water inlet and discharge, a hot water inlet and discharge, and a circulation port connecting said hot water inlet with said cold water discharge, said hot Water inlet and said cold Water discharge being connected to the water heater, whereby, when said circu-' lation port open Water may circulate through said heater valve casing and said heater connections therefor; a water inlet valve; and a circulation valve arranged to be automatically controlled by said water inlet valve whereby it is closed when said water inlet valve is open, and opened when said water inlet valve is closed.

11. The combination with a water heater, ot a gas burner therefor; a water valve casing having a cold water inlet and discharge, a hot water inlet and discharge, and a circulation port connecting said .hot water inlet to said cold water discharge said cold water discharge and said hot Water inlet being connected to the water heater; :1 piston water inlet valve; a stem therefor; a return spring forsaid'inlet valve; a circulation valve for said port loosely mounted on the stem of said water inlet valve; an adjustable rest for said circulation valve on said stem; a coiled spring arranged on said stem to en gage said valvefor holding it yieldingly against its said rest whereby said circulation valve is aifitomatically closed when said water inletva'lve'is opened; a gas valve; a stem therefor-a1- 'anged to be engaged by the stem of sanftflvater inlet whereby said gas valve is opened bysai'd water inlet. valve;

and a return spring for said gas valve.

12. The combination with a. water heater, of arms burner theref a water valve casing having a cold water inlet and discharge,

a hot water inlet and discharge, and a circulation port connecting said hotwater inlet to said cold water discharge, said cold water discharge and said hot water inlet being connected to the .ivater heater; a piston water inlet valve; a stem therefor; a return spring for said inlet valve; a, circulation valve for said port loosely mounted on the stem of said Water inlet valve; a rest for said circulation valve on said stem; a coiled spring arranged on said stem to engage said valve'for holding it yieldingly against its said rest. whereby said circulation valve is automatically closed when said water inlet valve is opened; a valve; a stem therefor aranged to be engaged by the stem of said water inlet valve whereby said gas valve is opened by said water inlet valve; and a return spring for said gas valve.

13. The combination with a water heater, a water valve casing having a cold water inlet and discharge, a hot water inlet and discharge, anda circulation port connecting said hot water inlet to said cold water discharge, said cold water discharge and said hot water inlet being connected to the water heater; a piston water inlet valve; a stem therefor; a return spring for said inlet valve; a circulation valve for said port loosely mounted on the stem of said water inlet valve; an adjust-able rest for said circulation valve on said stem; and a coiled spring arranged on 3 said stem to engage said. valve for holding it yieldingly against its said rest whereby saidcirculation valve is automatically closed when said water inlet valve is opened.

'14. The combination with a water heater, of a water valve casing having a cold water inlet and discharge, ahot water. inlet and discharge, and a circulation port connecting said hot water inlet to said cold water dis charge, said cold water discharge and said hot water inlet being connected. to the water heater; a'piston water inlet valve; a stem therefor; return spring for said inlet valve; a circulation valve for said port loosely mounted on the stem of said wateri-nlet' valve; a rest for said circulation valve on said stem; and a co ed spring arranged on said stem to engage said valve for holding it yieldingly against its said rest wherebysaid circulation valve is automatically closed whcnsaid waterinlet valve is opened.

15, T he combination with a water heater of a burner, therefor; a water inlet valve; a stem therefor; a circulation valvelooselymounted on the stern of said Water inlet valve; an adjustable rest for said circulation valve on said stem; a spring for holding it yi'eldingly against its said rest 'where-' by said. circulation valve is automatically closed when said water inlet valve is opened; a gas valve; and a stem therefor arranged to be engaged by the stem of said Water inlet valve whereby said gas valve is opened by said water inlet valve.

16. The combination with a water heater, of a burner therefor; a water inlet: valve; a stem therefor; a circulation valve loosely mounted on the stem of said water inlet valve; a rest for said circulation valve on said stem; :1 spring for holding it yieldingly against its said rest whereby said circulation valve is automatically closed when said water inlet valve is opened; a gas valve; and a stem therefor arranged to be engaged .by the stem of said water inlet valve whereby said gas valve is opened by said water inlet valve.

17. The combination with a water heater of a gas burner therefor; a water valve casing having a cold water inlet and discharge, a hot water inlet and discharge, and a circulation port connecting said hot water inlet with said cold waterdischarge, said cold water discharge and said hot water inlet being connected to 'the water heater; :1

water inlet valve; a circulation valve ar ranged to be automatically controlled by 'said inlet valve whereby it is closed when said Water inlet valve is opened, and opened when said water inlet valve is closed; a thermostat arranged in said connection for said heater to said hot water inlet; a gas valve casing; a gas valve; and connections for said thermostat to said gas valve comprising'a lever pivoted on said water valve casing arranged to be actuate by a member of the thermostat, and a lever pivoted on said gas valve arranged to be actuated by said lever pivoted on said water Valve, said lever on said gas valve casing being. connected to said gas valve.

18. The combination with the water heater of a water valve casing connected to a heater, of a thermostat arranged in said connection; a'gas valve casing; a gas valve; and a connection for said thermostat to said gas valve comprising a lever fulcrumed on said water valve casing and arranged to be acted upon by said thermostat, anda lever fulcrumed on said gas valve casing arranged to be actuated by said lever actuated by said thermostat, said lever being connected to the gas valve.

In witness whereof, I have hereunto'set my hand and seal in the presence of two wit- HBSSGS.

HERBERT S. HUllllllREY.

' VYitnesses:

CLARA E. BRADEN, GERTRUDE TALLMAN. 

